Luonnollinen pohjamateriaali makean veden akvaarioihin. Valmistettu savesta ja on huokoista. Raekoko 0,5-2mm. Huuhtele hyvin ennen käyttöä. Natural substrate for freshwater aquariums. The grain size is 0.5-2 mm. Optimal plant care through porous structure and nutrient storage function: substrate for freshwater aquariums. Vigorous plant growth, prevents algae: effective settlement of beneficial soil bacteria and ideal root growth thanks to natural pore structure. Support for the filter. Crystal-clear water. Ideal for fish, invertebrates and plants: no unwanted pollutants released into the water. Round-shaped granule grains are gentle on sensitive barbels of bottom-dwellers. High storage capacity: the natural substrate absorbs the surplus nutrients and releases them when required. JBL Manado itself doesnt contain any fertilizer. JBL Manado is, however, able to absorb nutrients (especially trace elements) to supply to the plant roots. Manado is produced from a natural raw material (clay), which can exhibit slight fluctuations in mineral composition, depending on where it was found.